Liquid crystal-based tunable CRLH-transmission line for leaky wave antenna applications at Ka-Band
Liquid crystal-based tunable CRLH-transmission line for leaky wave antenna applications at Ka-Band
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DOI：
10.1017/s1759078714000294
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发表时间：
2014-06-01
影响因子：
1.4
通讯作者：
Jakoby, Rolf
中科院分区：
文献类型：
--
作者：
Roig, Maria;Maasch, Matthias;Jakoby, Rolf
在这项工作中，基于液晶的可调谐复合右/左手传输线的未来漏波天线工作在Ka波段。液晶的调谐通过磁偏置和电偏置来实现。为了这个目的，不同的原型制作每一个偏置技术和他们的色散特性进行比较。通过在单元布局中实现高电阻偏置线来实现电可调谐性。这两种技术在27 GHz的工作频率下产生类似的调谐能力，而电调谐技术具有易于集成在布局中的优点。
In this work, a liquid crystal based tunable composite right/left-handed transmission line for future leaky wave antennas working at the Ka-band is presented. The tuning of the liquid crystal is achieved by means of magnetic and electric biasing. For this purpose, different prototypes are fabricated for each biasing technique and their dispersive characteristics compared. Electric tunability is achieved by implementing highly resistive bias lines in the unit cell layout. Both techniques yield similar tuning capabilities at the operation frequency of 27GHz whereas the electric one has the advantage of being easily integratable in the layout.